翻訳と辞書 Words near each other ・ Pyropelta bohlei ・ Pyropelta corymba ・ Pyropelta musaica ・ Pyropelta oluae ・ Pyropelta ryukyuensis ・ Pyropelta sibuetae ・ Pyropelta wakefieldi ・ Pyropelta yamato ・ Pyropeltidae ・ Pyrophaena ・ Pyrophanite ・ Pyrophilia ・ Pyrophleps ・ Pyrophobia ・ Pyrophone ・ Pyrophoricity ・ Pyrophorus (beetle) ・ Pyrophorus luminosus ・ Pyrophorus noctilucus ・ Pyrophorus nyctophanus ・ Pyrophorus punctatissimus ・ Pyrophorus tuberculifer ・ Pyrophosphatase ・ Pyrophosphate ・ Pyrophosphomevalonate decarboxylase ・ Pyrophosphoric acid ・ Pyrophyllite ・ Pyrophyte ・ Pyropia columbina ・ Pyropia rakiura Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Pyrophoricity ： ウィキペディア英語版 Pyrophoricity A pyrophoric substance (from Greek ''πυροφόρος'', ''pyrophoros'', "fire-bearing") ignites spontaneously in air at or below 55 °C (130 °F).〔SEMI, standard F6-92, (''Guide for Secondary Containment of Hazardous Gas Piping Systems'' ), (as cited by ChemiCool.com )〕 Examples are iron sulfide and many reactive metals including uranium, when powdered or thinly sliced. Pyrophoric materials are often water-reactive as well and will ignite when they contact water or humid air. They can be handled safely in atmospheres of argon or (with a few exceptions) nitrogen. Most pyrophoric fires should be extinguished with a Class D fire extinguisher for burning metals. ==Uses== The creation of sparks from metals is based on the pyrophoricity of small metal particles, and pyrophoric alloys are made for this purpose. This has certain uses: the sparking mechanisms in lighters and various toys, using ferrocerium; starting fires without matches, using a firesteel; the flintlock mechanism in firearms; and spark-testing ferrous metals. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pyrophoricity」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.